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===== Mac OS X =====

Note: You must install OpenCPN into your Applications folder where it belongs. The installers of the plugins of course expect it to be there.

===OpenCPN is distributed as a Mac ".dmg" file ===

  - Download the .dmg file.
  - Open the dmg file by double-clicking on it - this will mount the dmg as a virtual device and create a mount on your desktop.
  - Drag the OpenCPN.app icon to the Applications icon in the installer window. This may require the administrator password.
  - Unmount the dmg by right-clicking on the desktop icon and selecting "Eject"

  * You can have a look at [[http://mac.tutsplus.com/tutorials/tips-shortcuts/how-to-install-and-properly-remove-apps/|this tutorial]] How to Install and Remove Apps for general instructions on installing Mac OS X applications.
  * If you have a message that installations are only accepted for programs from qualified developers, navigate to Applications in Finder, Control-click OpenCPN.app, select Open from the context menu and confirm that you want to start it in the displayed dialog.
  * To save a previously installed version rename the app in the Applications directory before installing the new version.
  * If OpenCPN.app is replaced, the installed plugins will not be there anymore and have to be re-installed on the new OpenCPN.app. The userdata of the plugins will still be there.

Also for MacOS Mojave see CF thread 
http://www.cruisersforum.com/forums/f134/open-cpn-kind-of-a-mess-on-mojave-228973.html

For MacOS Catalina there are some issues, but look at this CF post
http://www.cruisersforum.com/forums/f134/oesenc-does-not-download-to-plugins-on-opencpn-228875.html#post3054084

===Plugin Installation ===

  - Download the installation package (*.pkg)
  - Make sure that the OpenCPN application is not renamed. The plugin will only install on OpenCPN.app
  - Double-click the downloaded file to start the installation. In case your security settings are tight, which is the default on modern macOS versions, Control-Click on the file, select Open from the context menu and confirm your intention to open the installer.
  - Follow the instructions provided by the installer
  - In case your security settings are tight and the OS refuses to start the installer, control-click it, select Open from the context menu and confirm your intention to install the plugin in the subsequent dialog.

Use of your [[opencpn:supplementary_software:ipad|iPad with RealVNC and OpenCPN]]

